FLEXIBLE
TPU 65
A high-hardness Shore 65D thermoplastic polyurethane used for durable FDM parts requiring impact resistance, wear resistance, dimensional stability and controlled energy absorption.
Material Overview
TPU 65 refers here to a Shore 65D thermoplastic polyurethane. It is one of the harder TPU classes and bridges the gap between flexible elastomers and rigid engineering thermoplastics. The material provides the toughness, abrasion resistance and energy absorption associated with TPU while offering considerably greater stiffness and dimensional stability than soft Shore A grades. It is suited to mechanically loaded components, wear parts and outdoor applications. Final performance depends on the selected formulation, part geometry, wall thickness, print orientation, operating environment and production parameters.
APPLICATION
Typical Part Types
Wear-resistant gears, rollers and drive components
High-load seals and durable sealing components
Machine guards, protective covers and impact-resistant housings
Bushings, couplings and vibration-resistant mounts
Guides, stops and mechanically loaded contact components
Outdoor parts exposed to moisture and changing weather conditions
Durable jigs, fixtures and manufacturing aids
Strong one-off parts and controlled production runs
Material Selection Note
TPU 65 Shore D is suitable where conventional flexible TPU is too soft but a brittle rigid plastic would not provide sufficient impact resistance or energy absorption. It should not be treated as equivalent to TPU 65A. Gramm reviews the required hardness, stiffness, loading, deformation, wear conditions, moisture exposure, operating temperature, geometry and dimensional requirements before manufacturing.